Hello,
You have too many items in the menu, so you might increase the menu items limit. That’s why new items can’t be saved. This is WordPress issue, not the theme, you can check it with default WordPress theme too. Here are some explanations: http://www.wpbeginner.com/wp-tutorials/how-to-fix-the-custom-menu-items-limit-in-wordpress/ https://core.trac.wordpress.org/ticket/14134
Thank you. Regards, Eva Kemp.
